Edelbrock 61909 - Edelbrock SB-Chevy Aluminum Cylinder Heads
Edelbrock #350-619091992-97 LT1 Performer Aluminum Cylinder Head |
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Edelbrock 61909 - Edelbrock SB-Chevy Aluminum Cylinder Heads Details
Performer Centerbolt Aluminum Cylinder Heads
Designed for 1992-97 LT1 engines, these aluminum heads have specifically designed 170cc intake and 60cc exhaust ports with increased valve sizes (1.94'' intake, 1.55'' exhaust) for maximium flow and performance. Combustion chamber volume is 54cc. A prototype set of Edelbrock Performer LT1 heads made about 24 horsepower more than factory-stock LT1 heads and raised the peak power level by 500 RPM. Performer LT1 heads work with stock or aftermarket self-guiding roller rocker arms. Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.
Performer S/B Heads Performer Centerbolt Heads E-Series Heads Victor Semi-Finished Heads Made In The USA
Designed for 302-400ci engine up to 1986, these aluminum heads feature 185cc intake ports and 64cc combustion chambers. The combustion chambers are designed to improve performance and retain stock compression ratios on 1970 and earlier small blocks.
Designed for 1987-95 Chevy 5.7L engines originally equipped with centerbolt valve covers. These aluminum heads use the 1987-95 intake manifold bolt pattern. The high velocity ports work with either TBI or Tuned Port Injection systems. They maintain stock compression when used with the recommended gasket. These heads will accept the stock centerbolt valve covers or the Edelbrock aluminum valve covers, P/N 350-4246, 4247.
The E-210 cylinder head for small-block Chevy engines provides race-level performance while maintaining full compatibility with OEM equipment. It features larger runners for increased airflow, revised exhaust ports and larger diameter springs for higher lift camshafts, making them ideal for a spec series racer and larger displacement engines. The exhaust port flange is in the stock location to allow for the use of off-the-shelf headers and hardware, while the enlarged valves and ports support the power needed to compete at engine speeds of up to 6500 rpm. The E-210 cylinder head is capable of supporting more than 500 naturally aspirated horsepower, and even more in forced induction applications.
Victor Semi-Finished
Small-Block Chevy Heads are designed especially for custom applications. These unported versions of Victor heads for the professional cylinder head porter or engine builder
As-cast ports have enough metal thickness to allow for CNC porting to different sizes
Seats and manganese-bronze valve guides included (except #77539 and #77549), but not installed.
